Histones are enriched with:
Botany ·Previously asked in NEET UG 2025
View the full solved paper: NEET UG 2025
Question
Histones are enriched with:
- A. Lysine & Arginine (Correct answer)
- B. Leucine & Lysine
- C. Phenylalanine & Leucine
- D. Phenylalanine & Arginine
Correct Answer
Option A — Lysine & Arginine
Detailed Solution & Explanation
The correct answer is Lysine & Arginine.
Key Points
- Histones are positively charged basic proteins that package DNA; they are rich in the basic amino acids lysine and arginine.
- The positive charge lets them bind the negatively charged DNA to form the nucleosome (histone octamer).
Topics covered: NEET UG 2025 Botany Molecular Basis of Inheritance DNA Packaging